Sewing-machine-actuating means.



J. DIEHL. SEWING MACHINE AGTUATING MEANS. APPLIOATION FILED APR. 2, 1907.

Patented Dec. 29, 1908.

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UNITED stares ra'rnnr OFFER.

JACOB DIEHL, OF CLEVELAND, OHIO, ASSIGNOR TO THE STANDARD SEWING MACHINE COM- PANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

SE W ING-MACHINE -ACTUATING ME ANS.

Specification of Letters Patent.

Patented Dec. 29, 1908.

Application filed April 2, 1907. Serial No. 365,986.

T 0 all whom it may concern:

Be it known that I, JAooB DIEHL, citizen of the United States, and resident of Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Sewing-Machine-Actuating Means, of which the following is a specification.

My invention relates to improvements in hand-operated means for actuating sewing or other similar machines.

Heretofore so-called hand-operating attachments have been provided for actuating sewing machines which have comprised a system of intermeshing toothed gears mounted on a frame connected to the arm of the machine, the said gears having operative connection with the driving shaft of the machine to impart motion thereto and one of the same being provided with an operating handle to be grasped by the. operator. These attachments, however, in the use of the gears, have been found to be more or less objectionable because of the noise produced by the intermeshing gears, which is particularly noticeable after the gear teeth become somewhat worn, and also because of the lack of light running qualities so desirable in a sewing machine produced by the friction of the intermeshing gears. F or such reasons, among others, it has been the main object of my present invention to provide an improved hand-operated means for actuating sewing or other similar machines by which the objectionable features mentioned as incident to the use of the usual intermeshing gear type of hand-operating means will be avoided; in other words, to provide an improved handoperated means for actuating sewing or other machines that will be both quiet and light-running in operation, and also simple and inexpensive in construction.

To this end the invention consists in the novel construction and combination of parts hereinafter set forth in detail and particularly pointed out in the appended claims.

Referring now to the accompanying draw ing forming part of this specification, Figure 1 is a front sectional elevation of the rear end of a sewing machine provided with my invention. Fig. 2 is an end view of the same looking from the right as viewed in Fig. 1. Fig. 8 is a sectional de tail of a part of the operating handle to be hereinafter referred to.

Similar reference characters designate like parts in the several figures of the drawings.

2 designates a portion of the arm or frame of a sewing machine of ordinary construction, and 3 designates the driving shaft of the machine provided with the usual hand-wheel 3.

The improved means embodying my invention for actuating the driving-shaft 3 preferably comprises a sprocket-wheel 4 fixed on said shaft, a second or driving sprocket-wheel 5 having an operating handle 6, a belt 7 operatively gearing or connecting the two sprocket-wheels, and a bracket 8 connected to the arm or frame 2 and sup porting the said driving sprocket-wheel 5. This combination of parts provides a very simple and inexpensive means for actuating the driving shaft by hand, and one that is also very quiet and light-running in operation; the use of the belt 7 in operatively con necting the driving and driven wheels 4 and 5 serving to avoid the noise and friction produced by the usual intermeshing gears.

The brackets 8 for supporting the driving sprocketnvheel 5 may be of any suitable form and construction and be connected to the machine frame in any suitable manner. In the present case, the said bracket is shown in the form of a plate which is preferably adapted to be pivotally connected to the machine frame with its axis coincident with that of the driving-shaft 3 whereby the bracket may be adjusted circumferentially about the driving-shaft to locate the driving sprocket-wheel 5 at any desired position to suit the convenience or requirements of the operator and to effect such adjustment without disturbing or interfering with the connection between the two sprocket-wheels. As a simple and desirable means for effecting such pivotal connection of the bracket with the machine frame, the bracket is formed with a tubular extension 9 which is adapted to be inserted into a corresponding seat 10 in the machine frame and serve as a bearing for the rear end of the driving-shaft 3 in lieu of the bushing ordinarily located in such position for the same purpose. The bracket is detachably held in connection with the machine frame, and also held stationary in any position to which it may be adjusted, by suitable fastening means, such as the set-screw 11.

As a simple and effective means for guarding the sprocket wheels and their belt connection from accidental contact by the operator, or from accidental contact by any foreign object, the bracket is provided with a guard for said parts in the form of a flange 8 projecting laterally from the bracket in a position surrounding the outer or face side of the sprocket wheels and their said belt connection.

As a means for supporting the driving sprocket-wheel on the bracket to permit of its rotary movement, the bracket is provided with an axle-pin 12 upon which the sprocketwheel is mounted, which axle-pin is somewhat elongated to provide a bearing for a laterally projecting hub 13 of the sprocketwheel which is made of suflicient length to support the connected operating handle 6 in a position to permit of its rotary movement in a plane beyond the end face of the handwheel 3'.

The operating handle 6, as is usual in hand-operating means of the present type, is pivoted to the hub of the driving wheel 5, as by a pivot-screw 1-1,whereby the handle may be thrown back to an inoperative position, as indicated by dotted lines in Fig. 2, with the handle proper extending within the plane of the end face of the hand-wheel, in order to reduce the outside dimensions of the machine and permit of its being placed within a smaller box or cabinet. When the handle is thrown into its operative position, as shown by full lines in Figs. 1 and 2, it is movably held in such position by means of a pivoted spring-pressed latch 15 which is located in a gain or recess 16 in the shank 6 of the operating handle with one end arranged in position to enter a transverse notch 17 in the driving wheel hub 13 and effect a locking connection of the handle therewith. By pressing the lower or outer end of this latch inwardly against the pressure of the spring 18 interposed between the latch and the handle shank 6, the upper or inner end of the latch will be thereby withdrawn from the locking notch 17 of the wheel hub, as indicated by dotted lines in Fig. 3, and permit of the handle being swung to its inoperative position.

What I claim is:

1. In a sewing machine, the combination with the frame thereof and the driving shaft, of hand-operated actuating means for said shaft comprising a sprocket-wheel on the shaft, a driving sprocket-wheel having an operating handle, a belt operatively connecting the two wheels, and a bracket detachably connected to the frame of the machine supporting said driving sprocketwheel.

2. In a sewing machine, the combination with the frame thereof and the driving shaft, of hand-operated actuating means for said shaft comprising a sprocket-wheel on the shaft, a driving sprocket-wheel having an operating handle, a belt operatively connecting the two wheels, and a bracket pivotally connected to the frame of the machine with its axis coincident with that of the driving shaft and supporting the said driving sprocket-wheel.

3. In a sewing machine, the combination with the frame thereof and the driving shaft, of hand-operated actuating means for said shaft comprising a sprocket-wheel on the shaft, a driving sprocket-wheel having an operating handle, a belt operatively connecting the two wheels, a bracket pivotally connected to the frame of the machine with its axis coincident with that of the driving shaft and supporting the said driving sprocket-wheel, and means for holding the bracket in adjustable stationary position relative to the machine frame.

4. In a sewing machine, the combination with the frame thereof and the driving shaft, of hand-operated actuating means for said shaft comprising a sprocket-wheel on the shaft, a driving sprocket-wheel having an operating handle, a belt operatively conuecting the two wheels, and a bracket connected to the frame of the machine supporting said driving sprocket-wheel and being provided with a guard surrounding the outer or face side of the driving belt.

5. In a. sewin machine, the combination with the frame thereof and the driving shaft, of a bracket having a bearing for said shaft and being pivotally connected to the frame with its axis coincident with that of the shaft, and. two operatively-connected driving wheels one being attached to the shaft and the other being supported on the bracket and having an operating handle.

6. In a sewing machine, the combination with the frame thereof and the driving shaft, of a bracket having a bearing for said shaft and being pivotally connected to the frame with its axis coincident with that of the shaft, and two operatively-connected driving wheels one being attached to the shaft and the other being supported on the bracket and having an operating handle, the said bracket being provided with a guard flange surrounding the face side of the driving wheels and their connection.

7. In'a sewing machine, the combination with the frame thereof and the driving shaft, of a bracket connected to said frame and having a bearing for the shaft and also having an axle-pin, a sprocket-wheel at tached to the shaft, a driving sprocketwheel mounted on the bracket axle-pin and having an operating handle, and a belt operatively connecting the sprocket wheels.

8. In a sewing machine, the combination with the frame thereof and the driving Signed at Cleveland, in the county of 10 shaft, of a bracket pivotally connected to Cuyahoga, and State of Ohio, this 28th day said frame and having a bearing for the of March, A. D. 1907.

shaft and also an axle-pin, a sprocket-Wheel attached to the shaft, a driving sprocket- JACOB DIEHL. Wheel mounted on the bracket-axle pin and having a laterally extended hub provided Witnesses:

with an operating handle, and a belt oper- CHAS. G. EMMoNs,

atively connecting the sprocket-Wheels. W. C. WALKER. 

